Pith Number

pith:WDXR2BFZ

pith:2006:WDXR2BFZHMRWD4APQBO4IVZOBP

not attested not anchored not stored refs pending

The XMM-Newton view of the Crab

E. Kendziorra, G. Schoenherr, J. Wilms, K. Mukerjee, M.G.Breitfellner, M.G.F. Kirsch, M.J. Freyberg, M.J.S. Smith, M. Martin, R. Staubert

arxiv:astro-ph/0604097 v1 · 2006-04-05 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WDXR2BFZHMRWD4APQBO4IVZOBP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:58:33.813606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0ef1d04b93b2361f00f805dc4572e0bd632902c97f150b051950a9150f48d0b

Aliases

arxiv: astro-ph/0604097 · arxiv_version: astro-ph/0604097v1 · doi: 10.48550/arxiv.astro-ph/0604097 · pith_short_12: WDXR2BFZHMRW · pith_short_16: WDXR2BFZHMRWD4AP · pith_short_8: WDXR2BFZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WDXR2BFZHMRWD4APQBO4IVZOBP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b0ef1d04b93b2361f00f805dc4572e0bd632902c97f150b051950a9150f48d0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6c43a5a6ade2d6bd69407d9d782ddaeb281919b8fcfa95e8f67c7d51ece4a49",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-05T12:28:26Z",
    "title_canon_sha256": "19866c80749a8896148dd18d85723439cf4737fbf7c5eeae8e7977a2aa0a0ae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604097",
    "kind": "arxiv",
    "version": 1
  }
}